Routing-machine.



G. SOHRADE.

ROUTING MACHINE. QPPLICATION FILED JUNE 30. 1910.

- Patented Feb.-21,1911.

' a sums-$112311.

G. SGHRADE. ROUTING MACHINE. APPLIGATION FILED 'Jmin so. 1910.

Patented Feb. 21, 191 1.

a sunns snnn'r 2.

G. SGHR ADE. ROUTING momma APPLICATION l'ILBD JUNE 30,1910.

3 985,117; 7 Patented Feb. 21,1911.

e. SCHRADE. ROUTING MAQ HINIB. APPLICATION FILED JU-NE 3 0. 1910.

8 SHEETB-SHBET 4.

Patented Feb.21,1911.

H D A H G S G ROUTING MACHINE. API'LIUATION FILED JUNE 30. 1910.

Patented Feb. 21; 1911.

8 SHEETS-SHEET 5.

G. SCHRADE.

- ROUTING MACHINE.

APPLICATION FILED JUNE 30. 1910.

985, 1 1.7. Patented Feb. 21, 191.1,

w kw N H D A R H G S "m ROUTING MACHINE.

APPLIUATION FILED JUNE 30. 1910.

Patented Feb. 21,1911.

8 SHEETS-SHEET I.

Bantamsacrame To all whom it may concern:

Be it known that 'I, GEonor. Scrrnann, a citizen of the United States, residing at l/Val den, in the county of Orange and State of Xew York, have invented certain new and useful Improvements in Routing-Machines not heretofore known or used; and I here by declare the following specification to be a full and clear description thereof, reference being had to the accompanying drawings. I

This invention relates to machines for routing or mortising for inlaying work and more especially to that class adapted to .work in a thin piece ofhone', ivory, wood orsimilarsubstance used for the coverings of the handles of pocket knives where it required to produce a mortise or recess in these coverings ,for theinlay of a metal plate or shield, and my improvements embody mechanisms and manner of operating new and novel chisels or tools for routing out the ma- :terial to securefthe desired recess'or mortisetherein, and also new mechanisms and means for holding adjustingthe pieces of bone orother material while being operated. on. These and pther objects and details of the in- ;vcntionare more fully described inthe ac companylng spec fication. set forth 1nv the claims and illustrated in the drawings,

J wherein:

Figure 1 is a side elevation of themachine. Fig. 2-isa front'elevation of same. Fig. 3 is a sectional view on finch-3 of Fig. 1. Fig. 4 is an-enlatgeddetail view illustrating the adjusting mteans for the work holder. Fig.

5 is a fragm ntary view of the machine from the side opposite Fig. 1. Figs. (3 and 7. are. die holder. Figs. 8 and 9 are views of th rspective i views showing the completed side of a p knifeand the plate which is to be ins'erted in same;

-and 13are Views of the Work Fig; 14 is a side elevation of the work holder.

Figs. :10. and are sectional-views of the die. F1gs.12

planand holdingplates.

Fig-'15 isa gplanv iew of same. Fig. 16 isa transverse sectionalv-iewof this work holder. Fig.

.Figs. 18, 194 20, 21,.22 and 23show modified formsv and ;construction of the routing tool.

Figs-"24 and 25 show a device embodying means for'relieving the routing tools from excess of st ain by use of in frictionpacking.

Figs. 26 and 27 are detailr'iews of the nut,

' for rotating the driving spirit}.

i UNITED STATES PATENT OFFICE.

GEORGE SCI-IRADE, OF WALDEN, NEW YORK.

Specification of Letters Patent.

Application filed June 30, 1910. Serial No. 569,839.

17 is an elevation of the routing tool.

Patente d Feb. 21, 1911.

ing pulley 5 or any other well known means for communicating motion to the-operative parts of the machine; Secured to-the upper end of the pedestal is an extension 6 having a vertical slot 7 in its face. Upon this extension is secured a bracket 8 which terminates in a journal bearing 10 and also carries an upright extension 74 bent at the top to provide a journal 9 for the upper end of the spiral shaft. Thisextensi'on (i at its top is also provided with a fulcrum 11 in which is pivoted a. lever 12 to support the driver or walking-beam 13'which isactuated by means of the crank arm 11 on the shaft 4 through the connectin link 15. The front end 13 o the walking beam 13 is forked,- and' pivoted therein is a nut 16 through which plays, when the walking beam is actuated,a driving spiral 17, the

shaft of which is journaled' in the bearings 9 and. 10. At the lower end of the spiral is an adjustable collar 18 which is secured to the spiral shaftl and forms a surface to sup port the same on the upper. side of the hearing 10. The spiral shaft belowthe collar 18 is cylindrical and terminates in'an enlarged head 20beneath the bearing 10 for the reception of the shank of the routing tool holder 20. Either one or two rou'tingtools .may be used in the sockets 21 and 22. As .the nut 16 moves up and down the spiral shaft, it is rotated first in one direction and then in a reverse direction.

. In Figs. 1 and 2 but one tool 23 is shown them tospring outward whenever the openv in'g in the plate or; die permits of this action. It is available to use either one or two rout; in'g tools as the shape or size of the mortise to; be out requires. tool .or hit for work, It must be understood that in speak ing: of the routing vchisels the word; tool or tools are used. to designate substantially. the. I

"seine thingtwo chisels-making up t e rout- .I prefer to use only one 7 the greater portion of the where they are provided with nuts 31. Spi-- ral springs 32 surround the stems and rest upon the shoulders formed by the less diameter of the stems and the springs are thus eonfinedbetween the upper ends of the plungers and the upper end of the bored .interior of the cylinders26. This is done in order to permit the die holder 28 to give slightly under pressure and automatically adjust itself when the machine is in operation. The upward movement of the die holder however is controlled by the stop screw 33 whiclris threaded in the-bracket 25 and limits the rise of the plate 28 by reason of the stud 27" striking on the bottom thereof.

As will be seen in Fig. 2 the'lower end of the routing tool extends into theopening 34 in'the die 29, the latter having perfo-- rations 35 through which extend bolts 36 to secure the die to the upper plate or die carrier 28. The carrier-28 as-will be seen in Fig. 7 has at its front side a recess 37 so as to expose the upper face of the die so the routing tools can reach it and to .permit of the plav of the tools therein. Secured to the guide ways 2 at the front of the pedestal is a sliding block 38 adjusted at any desired point by means of a set screw 39 and in this block is adjusted and moves vertically. the toothed rack 40. of a table 41. This table. carries or its upper face a stationary block 42 rigidly secured thereto by means of bolts 43 and on this block, pivoted by means of the pin 44, is a work holder 45 shown also in Figs. 14, 15 and 16 and which is reoesed on its upper face to carry the plates 46 secured by means of anchor bolts 47 and having holding pins 48 which .proiectupward and are intended to fit intoholes in the side plates or covers 50 of the knifellandle which is to be mortiscd; such holes being the same that are eommonly employed to secure the ivory or bone side pieces or covers to the knife handle. By means of this construction of the work holder -45 just described it is given the facility of :i tiltin'g block and will adjust itself .to inequalities in the cmers. Such a recess as is desired to be ,cut by this machine is illustrated in Fig. 8 and the necessary plate or shield to. fill same is represented by the-enlarged view, Fig. 9, this latter plate or shield 49 being for the purpose of ornamentation or for the insertion of the owners name or initial and may- '71 held bya set screw 23'. cutting tool or hit" 84.

shown in Figs. 19, 20 and 21 the lower end,

be secured within the mortise by means of pins or cement. The plates 46 are slotted at their. inner ends for the passage of the anchor bolts 47 so as to permit of an adju'stment which will separate the holding pins 48 to the proper distance necessary to register with the rivet holes in the covering of the knife and the ork carrier 45 rocks for the purpose of allowing a small degree of freedom of movement for the inequalities in the thickness along the length of the.cov--.

ering in which the mortise is to be cut and have it of the same depth in all parts so that the shield or name plate may fit into same evenly.

Attached to one end of-theshaft 51, which is journaled in the block 38, is a handle 52 for actuating the shaft, while at the otherend is a crank arm 53. On the-sh is also'a pinion.54 which meshes with the teeth 55 of the rack 40 in order to raise and lower the table and the work block 45 and; carry thebone or celluloid plate to be mortised to 'andfrom the cuttingtools. The crank arm 53' has on its inner face a stud 56 which plays in a recess 57 of a; shielding bar 3 supported by a box 59 and this box is also p'voted with a bracket 60 ,in which is pivoted a bell crank lever 61 whoseend 62- is forked to fitabout the pin-63 carried by the bar 58 'so that the .other arm of this lever will throw the belt shifter 64 which slides on the"su'pportin;i pin 64' and when the -wo'rk carrier is elevated by means of the handle 52; the belt 65 is shifted from the loose pulley 66 to the. fast-pulley 67 and thework immediately begins-and only continues as long as the table is elevated and-the tool or tools are working upon the wood or bone side pieces. Simultaneously with the droppin-, of the table 41 the belt is'autornatically ILOO shifted to the loose pulley and the routing tool or tools come to a rest.

The routing tool shown in Fig. 17 is of'a novel construction being chisel-shaped at its lower end and having cutting faces on both sides and the bottom. This routing tool requires to be of considerable length in order to have the necessary curve and spring-to properly bend and do the work. Where. the tool is all in one piece as shown in Fig. 17 the en tire piece has to be thrown away when'it is 'shortenedby continual sharpening In or der' to overcome this difficulty and loss I make the tool .in two parts as-shown in Fig. 18, theupper and springing portion serving the purpose of a bit. holder and atits lower "hich is socketed a short cutting {polar In the form of B'ishharpened, as is also one edgei-IS, while the rear edge 69' remains smooth. A similar construction but for work or ar'sinaller end beingpfovided' with a socket 83 into range, is illustrated in Figs. 22 and 23 where it will be seen that the tool is triangular, with its lower edge sharpened and also its frontedge 71; i

Figs. 26 and 27 show the arrangement of the nut 16 in the fork 13 where a perforated block 72 is journaled inthe fork to carry the nut through which passes a guide rod 73 secured to the bracket 8 and the upright arm 74 so that the nut maybe retained in a position to create as little friction on the spiral as possible in its up and down movement. It will be seen that when the handle 52 is pulled over by the" operator the table carrying the work holder is raised and by the same movement the driving belt is thrown over onto the driving pulley so that the walking-beam 13 rocks and passes the nut 16 along the spiral shaftv 17 cansing the same to rotate and revolve the routing tool or tools within the limits of the opening 34 of the die. On the downward thrust the toolholderrevolves in one direction and on the upward movementthis is reversed. When the machine is run at the proper speed the work of the tool or tools, in the material being operated on, is accomplished very quickly and evenly. In order to allow a certain amount of give in the movement of the. tools so that the structure will not be too rigid and endanger the breaking of the bits, a flexible or yielding coupling may .be provided for the lower end of the spiral shaft which is shownin Fig. 25'. This consists of a socket T4 in whichls 1nserted the shank 75 of a disk 76 and the said shank is held securely within itssocket by means of the set screw 77. The disk 76 is confined between washers 78 of fiber and suitable compression is furnished by means of the nut 7 9 which is made adjustable witha in the casing 80 which incloses these 1nembers of the coupling. As the nut is screwed into its place the washersare compressed on each face of the disk 76 so as to establish a frictional connection "between the casing 80 and the disk on the spiral shaft 17, but when any undue resistance is offered to the movement of the tool 23 the disk at the lower end of the spiral will be able to slip on the,

packing and turn independently of the lower shaft and consequently no damage will result to the bits. The lower shaft is in thiscase provided at its upper end with the squared portion 81 and a lock nut 82 prevents the release of the nut 79. ,As the machine operates the spiral and the/,todls are turned in different directions as the nut moves up and down on the spiral and this reversal of arrangements of the parts of this machinel movement causes ii to operatlon of the cut ting edges in either direction.

It is obvious that other modifications and may be resorted to withoutdeparting\from the essential'features abovedescribe to rotate the shaft in different directions.

What I claim as new and desire to secure by Letters Patent is 1- 1. In a machine of the class described, the embodiment of a routing tool'operatedwithin the confined space of a die by means of a reciprocatingly rotating shaft substantially as shown and describe j 2. In a machine of the class described, the combination with a routing tool adaptedto operate within a confined pattern, of a shaft carrying the tool and means for rotating the shaft and intermittently changing the direction of rotation.

3. In a machine of the class described, the combination with a routing tool, of a die for limiting the operation of, the tool, a rotating shaft carrying the tool and means for intermittently changing the direction of rotation of the shaft. A

l. In a machine of the class described, the combination with a rotating routing tool,of a die controlling "the limits ofthe operation of the routing tool, a shaft with a spiral thread carrying the tool, and a nut on the spiral shaft adapted to be reciprocated to rotate the shaft.

5. In a machine of the class described, the combination with routing tools, a die to re ceive the lower "ends of the tools and limit their action, a shaft carrying the tools spirals on the shaft, a nut on a guide way i and operating on the spirals, and a lever carrying the nut to reciprocate it and. cause it to turn the shaft.

6. In a machine-of the class described the combination with an upright frame having brackets, of a shaftcarried by the brackets routing tools at the lower end ofthe -sha'ft. sliding bracket carrying a die to confine ti, lower endsiof the tools, spiral threads along the upper end of the shaft, a nut on the spirals, a guide rod for the nut and an oscil lating lever to reciprocate the nutand cause 7. In a machine of the class described, the

combination with an upright frame having brackets, of a shaft adapted to rotate in the bracketafrouting tools with resilient stems carriedat the lower end of the shaft, spiral threads on the upper end of the shaft, a re- 'ciprocating nut on the threads, an osciilat-,

ing lever operating the nut, an adjustable bracket on the frame, a die with an opening to confine thelower ends of the routing tools and an adjustable bed to carry the articleto be operated on, a

8. In a machine of the class described, the combination with an upright frame having brackets, of an intermittently rotating shaft carried by the brackets, resilient routing tools at the lower end of the shaft, an adjustable bracket, a vie-ldin 'olate under sxrin r: l P a,

tension-carried by thesaid bracket, die with a recess ito'confine the lower end tithe routing tools and carried by the yielding plate, and an adjustable bed for carrying the work and adapted to-carry it against the tools so as to be operated on.

9. In a machine of the class described, the

combination with annpright frame having brackets, of driving tools, a crank arm driven by-the driving tools, a vertically arranged shaft with spiral threads, a nut adapted to reciprocate on the shaft and reverse the rotation of theshaft, a lever carrying the nut and oscillated by the crank arm, a swinging pivot for the lever, routing tools at the lower end of the shaft, 21 die liinitingthe operation for the routingtools and an adjustable base for carrying the w rk and adapted to move vertically beneath the tools:

10. Ina machine of the class described,

the combination with an upright frame having brackets, of driving -ulleys with a crank arm in one of the brackets. a vertical shaft adapted to reverse its rotation, reciprocating meansdriven by the-crank arm and adapted to actuate the shaft, routing tools carried by the shaft, an adjustable die holder with a recessto limit the movement of the tools. an adjustable table beneath the tools and a rocking bed carried by the table to hold the work being operated on bythe tools;

11. In a machine of the class described, the combination with an upri ht frame having'brackets, fast and loose driving pulleys table, a shaft'with an arm and means "for moving the table vertically and simultaneously shifting the belt.

12-. In a machine of the class described,

thecombination with an upright frame having brackets, fast and loose pulleys with a belt, a crank arm driven by the fast pulley a vertical rotating shaft carried by the brackets, spiral threads at the upper end of the shaft, a nut on the spiral threads, a lever reciprocating the nut, a link connecting the theoombination with an upright frame havlever with the crank arm, a die holder and a die with a. recess for limiting the movement of the tools, a. vertically adjustable table beneath theto'ols, a tilting block carried by'the table and adapted to ho d the workbeneath the tools, a toothed rack attached to the table, a shaft for the crank arm, a pinion. on the shaft and meshing with the toothed rack and means operated by the said shaft for shifting the belt for the pulleys as the table is moved vertically.

13. Ina machine of the class described, the combination with a rotating shaft, routing tools carriedby the shaft, a die holder and die limiting the operation of the tools, yielding stems securing the die holder to an adjustable bracket, means connected with the crank arm for intermittently reversing the movement ofthe tool carrying shaft, an adjustable work holder beneath the tools, a rack to same with teetha shaft with a pinion 'meshing with said teeth, a crank arm on the shaft and having a stud, and means connected with the crank arm for shifting the belts on the pulleys as the table is raised or lowered.

' 14. In a machine of the class described,

ing brackets, of an intennittently rotating shaft carrying routing tools, a fast and loose pulley carried by a bracket and having a' driving belt, a. crank arm operated by one of" the pulleys, means connected with the crank arm for rotating the shaft and reversing its direction of IOttltlOll, guide ways at the front of the frame, an adjustable block on I the guide ways, a work table with a toothed rack carried by the block, a shaft with a.

toothed wheel meshing with said rack, a handle on the shaft, a crank withastud on the shaft, aslide operated by the stud, a crank arm connected with the other end of the slide and a belt shifter operated by the crank arm to throw the belt from the loose to the fast pulley as the work tableis' elevated.

GEORGE SCHRADE.

Witnesses: i i

L. M. VV LIAMS, Asa SNYDER. 

